US Bridges

S Road (rs 907) over Trib to Smoky Hill River

Fair

Trego County, Kansas · 1.0S 11.8E Trego Center · Structure no. 000000000980430

Built
1931
94 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
37 ft
3 main spans
Daily traffic
100
2020 count
Owner
County
County Highway Agency

About this bridge

S Road (rs 907) over Trib to Smoky Hill River is a concrete culvert carrying S Road (rs 907) over Trib to Smoky Hill River in Trego County, Kansas. It was built in 1931, so it is 94 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 110 by 2043. The structure is 37 ft (11.3 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesS Road (rs 907)
CrossesTrib to Smoky Hill River
Location1.0S 11.8E Trego Center
RouteCounty Highway 907
CountyTrego County
StateKansas
Coordinates38.87079, -99.67563
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 10
Structure length37 ft (11.3 m)
Longest span12 ft (3.6 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic100 (2020)
Projected traffic110 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$150,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S Road (rs 907) over Trib to Smoky Hill River built?

It was built in 1931, making it 94 years old in 2025.

What condition is S Road (rs 907) over Trib to Smoky Hill River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does S Road (rs 907) over Trib to Smoky Hill River carry?

About 100 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is S Road (rs 907) over Trib to Smoky Hill River?

The structure is 37 ft (11.3 m) long with a longest span of 12 ft (3.6 m) and a deck 24 ft wide.

Who owns S Road (rs 907) over Trib to Smoky Hill River?

It is owned by the County Highway Agency.